Tile-concrete floor.



A. E. LINDAU.

TILE CONCRETE FLOOR.

APPLICATION FILED DEC. 7, I912.

Patented Dec.28,1915.

2 SHEETS-SHEET I.

A. E. LINDAU."

TILE CONCRETE FLOOR.

APPLICATION FILED 012cm 1912." 1,165,985. Patented Dec. 28, 1915.

2 SHEETS-SHEET 2.

free from beams or its lower surface.

UNI TD 8A8 ATENT FFICEQ ALFRED EMANUEL LINDAU, OF CHICAGO, ILLINOIS, ASSIGNOR TO CORRUGATED BAR COMPANY, OF ST. LOUIS, MISSOURI.

TILE-CONCRETE FLOOR.

Specification of Letters Patent.

Patented Dec. 28, 1915.

Application filed December 7, 1912. Serial No. 735,462.

To all whom it may concern:

Be it known that I, ALFRED E. LINDAU, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Tile-Concrete Floors, of which the following is a specification.

My invention relates to fire-proof floor construction, particularly to tileconcrete floors supported on columns, without beams or girders projecting below the under surface thereof, and has for its object the production of a light, fireproof floor, of inconsiderable thickness andgreat strength, and girders projecting below A further object of the invention is the construction of the floor of special tiles in such a way as to avoid the necessity for employing skilled labor in its construction, re duce the amount of falseworl: or forms for the concrete required, economize materials of construction, and dispense with much of the labor of placing the tiles in proper position ready to receive the concrete.

I attain these objects by forming the entire floor of hollow tiles of sizes suited to the location of the respective tiles with regard to the supports of the floor, and by filling in the spaces between the tiles with concrete, which may be reinforced with metal rods, as described in my application Ser. No. 649,887, filed September 18, 1911.

The shape and size of the respective tiles used determine the amount of concrete and its relative position in the floor, and also largely control the arrangement of the metal reinforce, if such be used; and so by properly choosing the form of tiles to be used in each part of the floor much of the labor of erection of forms, molds and spacing devices for the concrete and metal reinforce is dispensed with, and a light, strong floor insured.

Further details of my invention will appear in connection with the description of the embodiment thereof illustrated in the accompanying drawings, in which like characters designate like parts throughout the several views, and will be particularly pointed out in the appended claims.

In the drawings, Figure 1 is an isometric view of a portion of a tile-concrete floor adj acent to a column, part of the concrete filling being removed to show the arrangement of the tiles. Figs. 2 to 7 inclusive are isometric views of tiles used therein, showing their approximate relative proportions, and

Fig. 8 is an isometric sectional view on lines are arranged open-end box tiles having flat tops 2 and provided with lateral flanges 3 adjacent to the lower extremities of the side walls 4 thereof, and which may be provided with intermediate webs 6 parallel with the bases 5. These tiles are of two heights, as shown in Figs. 5 and 6, the tiles 7 being of less height than the tiles 8. The tiles 7 are arranged in rows adjacent to the margins of the floor panels, and the tiles 8 are arranged in rows across the central portion thereof, the rows in each case comprising tiles of uniform height with their lateral flanges in contact, and each two rows separated by a space. In the spaces between the rows extending in the same direction channel tiles, having bases 9 and side walls 10 provided near the bases with flanges 11, are arranged with the side walls 10 closing the open ends of the box tiles. The flanges 11 lit into the narrow spaces between thebottoms 5 and intermediate webs 6 of the box tiles, and lock the tiles together to insure their remaining in proper spaced relation. These channel tiles are of various heights and widths, as shown in Figs. 2, 3 and 4, the tiles 12 and 13 being wider than the tiles 14, and the tiles 12 being shallower than the tiles 13 and 1%. Angle tiles 15, shown in Fig. 7, each having a vertical flange 16, a base 17, and a lateral flange 18 projecting from the vertical flange near the base, are arranged with the vertical flanges closing the ends of thebox tiles in the marginal rowstransverse to the rows across the center of the panel, the lateral flanges 18 projecting into the spaces between the bases 5 and intermediate webs 6 of the box tiles as previously described with respect'to the channel tiles.

the spaces at the corners of the hollow tiles.

The flat tiles in the spaces at the corners of the floor panels may be provided with ribs 24 on their upper sides to bond them into the concrete.

.The spaces between adjacent tiles form intersecting channels extending throughout the entire floor panel, parallel with its four margins, and in line with similar channels in adjacent panels. In these channels corrugated bars or other reinforcing rods may.

be arranged, which when embedded in concrete, form reinforced concrete ribs between the tiles.

Following the positioning of the reinforcing bars, if used, and any pipes, ducts or conduits for water, gas, electricity, compressed air, or other purpose whatsoever, concrete 25 is laid in the spaces between the tiles and to the desired thickness over the tops thereof, and thoroughly rammed into place to bond the different elements into a rigid composite unitary structure. A smooth coat of cement may be applied on top of the concrete panels to give a hard finish to the floor, or any desired kind of flooring may be used. The temporary false work having been removed, plaster or other finish may be applied to the under side of the panels, completing the floor.

Although one of the objects of my inven tion is the elimination of beams or girders projecting below the lower surface of the floor panels, it is evident that my improved floor panels are not restricted to use in such a girder-less floor, but are equally well adapted to floors in which girders are used.

Also, the flanges 11 and 18 alongthe bottoms of the side walls of the channel and angle tiles may be omitted, although the use of tiles having these flanges insures that the channel and angle tiles shall be properly placed to cover the open ends of the box tlles, without the strict supervision of the laborers that would be required to place properly tiles not so'provided. WVith channel t les unprovided with flanges 11 there may be used box tiles of the usual type unprovided with the intermediate webs 6.

its parts, what I desire to claim as my inspaced therefrom by the bases of the latter,

and a beam of concrete overlying the bases of said angle tiles and filling the spacev between their vertical walls and the side walls of the tiles parallel thereto.

2. In a tile-concrete floor panel a marginal portion comprising open-end box tiles hav- 7 ing lateral flanges adjacent the bottoms of the sides thereof, said tiles being positioned in parallel rows with adjacent flanges of the tiles in each row in contact, angle tiles spaced in a r w transverse to said parallel rows of tiles, said angle tiles being arranged to close the open ends of said box tiles with their-vertical flanges, and with their horizontal flanges in contact with the side flanges of a row of open-end box tiles parallel thereto, and a filling of concrete overlying said tiles.

3. In a tile-concrete floor panel, open-end boxtiles arranged in rows the axes of the tiles of one row being at right angles to the axes of the tiles of the adjacent row, l.-- shaped tiles each arranged with its vertical member closing the open end of a box tile and with the outer edge of its horizontal member touching the side of an open-end box tile arrangedwith its axis at right angles to said first mentioned open-end tile, and a filling of concrete between said tiles.

4. In a tile-concrete floor panel, a row of open-end box tiles having lateral flanges adjacent to the bottoms of the sides thereof, said tiles being placed with their side flanges touching each other, L-shaped tiles arranged along one side of said row of tiles with their vertical members closing theadjacent open ends thereof and with their horizontal mem- ALFRED EMANUEL LINDAU.

Witnesses: V

.JAS. T. HAULEY,

J F. WEISS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

